Foldable bed frame structure

ABSTRACT

A foldable bed frame structure includes a bed frame, legs, and supports. The bed frame includes a left bed frame and a right bed frame. The legs include a left leg, a right leg, and a middle leg disposed between the left leg and the right leg. The left bed frame and the right bed frame are hingedly connected through connecting members. The middle leg includes a reinforcement transverse pole and a support leg. Two ends of the reinforcement transverse pole are provided with the connecting members, respectively. Longitudinal boards of the connecting members are disposed at inner sides of the left bed frame and the right bed frame. The support leg is disposed between the longitudinal boards of the connecting members. The present invention is safe for use.

BACKGROUND OF THE INVENTION

(a) Technical Field of the Invention

The present invention relates to a bed frame, and more particularly to a foldable bed frame structure.

(b) Description of the Prior Art

A conventional foldable bed frame structure, as shown in FIG. 5 to FIG. 7, comprises a bed frame, legs connected to the bottom of the bed frame, and supports 301 connected between the bed frame and the legs. The bed frame comprises a left bed frame 101 and a right bed frame 102. The legs comprise a left leg 201, a right leg 202, and a middle leg 400 disposed between the left leg 201 and the right leg 202. The left bed frame 101 and the right bed frame 102 are hingedly connected through connecting members. Each connecting member comprises a transverse board 501 for supporting and limiting the left bed frame 101 and the right bed frame 102 and a longitudinal board 502 for connecting the left bed frame 101 and the right bed frame 102. The longitudinal boards 502 of the connecting members are disposed at the outer sides of the left bed frame 101 and the right bed frame 102. The longitudinal board 502 has a left hinge hole and a right hinge hole. The left hinge hole and the right hinge hole are provided with screws 503. The left bed frame 101 and the right bed frame 102 are hingedly connected to the connecting members through the screws 503, respectively. The upper end of the middle leg 400 is fixed to the lower end of the transverse board 501. The outer side of the middle leg 400 and the outer sides of the left bed frame 101 and the right bed frame 102 are located on the same plane.

This fordable bed frame has some shortcomings when in use. Because the longitudinal board 502 is exposed at the outer side of the bed frame, it may hurt the user by accident to influence the safety of use. The user's clothes or the bed sheet on the bed frame may be hooked by the exposed longitudinal board 502 to influence the appearance of the entire foldable bed. Because the outer side of the middle leg 400 and the outer side of the bed frame are located on the same plane, the user's leg may hit the middle leg 40 by accident to be injured. This influences the safety of use. The weight of the bed frame and the article thereon acts on the middle leg 400 through the transverse board 501 directly. The middle leg 400 stands on the ground alone, so the stability of its support is not good. The middle leg 400 is directly fixed on the transverse board 501. For the middle leg 400 to be fixed steady, the cross-section of the transverse board 501 of the foldable bed must be larger relatively. The distance between the left bed frame 101 and the right bed frame 102 after folded is larger accordingly. After folded, the foldable bed occupies much space.

Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a foldable bed frame structure which is safe for use and stable for support and occupies less space.

In order to achieve the aforesaid object, the foldable bed frame structure of the present invention comprises a bed frame, legs connected to the bottom of the bed frame, and supports connected between the bed frame and the legs. The bed frame comprises a left bed frame and a right bed frame. The legs comprise a left leg, a right leg, and a middle leg disposed between the left leg and the right leg. The left bed frame and the right bed frame are hingedly connected through connecting members. Each connecting member comprises a transverse board for supporting and limiting the left bed frame and the right bed frame and a longitudinal board for connecting the left bed frame and the right bed frame. The longitudinal board has a left hinge hole and a right hinge hole. The left bed frame and the right bed frame are connected with the left hinge hole and the right hinge hole through locking members, respectively. The middle leg comprises a reinforcement transverse pole and a support leg connected to the bottom of the reinforcement transverse pole. Two ends of the reinforcement transverse pole are provided with the connecting members, respectively. The longitudinal boards of the connecting members are disposed at inner sides of the left bed frame and the right bed frame. The support leg is disposed between the longitudinal boards of the connecting members.

Preferably, the transverse board is integrally formed with the longitudinal board. The longitudinal boards of the connecting members are welded to the two ends of the reinforcement transverse pole, respectively.

Preferably, the locking members are screws each comprising a bolt portion and a threaded portion. The bolt portion is located at the inner side of the bed frame. One end of the threaded portion is fixedly connected to the bolt portion. Another end of the threaded portion is located inside the bed frame.

Preferably, both the left bed frame and the right bed frame are composed of a plurality of pipes. The inner ends of the left bed frame and the right bed frame are defined as pipe orifice portions of the pipes. Each pipe orifice portion is provided with a solid block. The threaded portion is screwed to the block.

The present invention is provided with the reinforcement transverse pole and the support leg connected to the reinforcement transverse pole and disposed at the inner side of the bed frame. The support leg won't be hit by accident to ensure the safety of use. The reinforcement transverse pole enhances the stability of the support leg so as to ensure the stability of the entire foldable bed frame. The longitudinal board of the connecting member is disposed at the inner side of the bed frame to prevent the connecting member from exposing and to prevent the user from hitting the connecting member by accident and to prevent the user's clothes or the bed sheet on the bed frame from being hooked by the connecting member so as to ensure the safety of use. The transverse board is used to support the left bed frame and the right bed frame only, not functioning as a carrier to fix the support leg. Therefore, the cross-section area of the transverse board is reduced, such that the distance between the left bed frame and the right bed frame is reduced accordingly after the left bed frame and the right bed frame are folded. The foldable bed frame after folded occupies less space.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the present invention, wherein the supports are not shown;

FIG. 2 is a side view of the present invention;

FIG. 3 is an enlarged view of circle A of FIG. 1;

FIG. 4 is a schematic view of the present invention after folded, wherein the legs and the supports are not shown;

FIG. 5 is a perspective view of a conventional foldable bed frame;

FIG. 6 is an enlarged view of circle B of FIG. 5; and

FIG. 7 is a schematic view of the conventional foldable bed frame after folded, wherein the supports are not shown.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 4, the present invention discloses a foldable bed frame structure. The foldable bed frame structure comprises a bed frame, legs connected to the bottom of the bed frame, and supports 30 connected between the bed frame and the legs. For convenient description, the range within the outer contour of the bed frame range is defined as the inner side of the bed frame and the range outside the outer contour of the bed frame range is defined as the outer side of the bed frame from a top view. The bed frame comprises a left bed frame 11 and a right bed frame 12. The legs comprises a left leg 21, a right leg 22, and a middle leg 40 disposed between the left leg 21 and the right leg 22. The left bed frame 11 and the right bed frame 12 are hingedly connected through connecting members 50. Each connecting member 50 comprises a transverse board 51 for supporting and limiting the left bed frame 11 and the right bed frame 12 and a longitudinal board 52 for connecting the left bed frame 11 and the right bed frame 12. The longitudinal board 52 has a left hinge hole 53 and a right hinge hole 54. The transverse board 51 is integrally formed with the longitudinal board 52. The transverse board 51 is disposed horizontally. The longitudinal board 52 is disposed in an upright direction. The left bed frame 11 and the right bed frame 12 are connected with the left hinge hole 53 and the right hinge hole 54 through locking members, respectively, and are rotatable relative to the connecting members 50. The middle leg 40 comprises a reinforcement transverse pole 41 and a support leg 42 connected to the bottom of the reinforcement transverse pole 41. Two ends of the reinforcement transverse pole 41 are provided with the connecting members 50, respectively. The longitudinal boards 52 of the connecting members 50 are welded to the two ends of the reinforcement transverse pole 41, respectively. The longitudinal boards 52 of the connecting members 50 are disposed at the inner sides of the left bed frame 11 and the right bed frame 12. The transverse boards 51 of the connecting members 50 are adapted to support the left bed frame 11 and the right bed frame 12. The transverse boards 51 of the connecting members 50 don't extend beyond the outer side of the bed frame. The support leg 42 is disposed between the longitudinal boards 52 of the connecting members 50. There is an interval between the support leg 42 and the connecting members 50, so that the user won't hit the support leg 42 by accident.

Preferably, the locking members are screws 70 each comprising a bolt portion 71 and a threaded portion 72. The bolt portion 71 is located at the inner side of the bed frame 71. One end of the threaded portion 72 is fixedly connected to the bolt portion 72. Another end of the threaded portion 72 is located inside the bed frame. That is to say, the screw 70 is screwed from the inner side of the bed frame toward the outer side of the bed frame, and the threaded portion 72 doesn't extend beyond the outer side of the bed frame, preventing the user from hitting the threaded portion 72 by accident. In order to enhance the stability of the connection of the connecting member 50 and the bed frame, both the left bed frame 11 and the right bed frame 12 are composed of a plurality of pipes. The configuration of the pipes can decrease the weight of the entire bed frame. The inner ends of the left bed frame 11 and the right bed frame 12 are defined as pipe orifice portions 80 of the pipes. The pipe orifice portions 80 are provided with solid blocks 60, respectively. The bed frame is formed with through holes at the position of the pipe orifice portions 80. The through holes communicate with the inner wall and the outer wall of the pipes. The screw 70 passes through the left hinge hole 53 or the right hinge hole 54 and the corresponding through hole, and then is screwed in the corresponding block 60.

Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims. 

I claim:
 1. A foldable bed frame structure, comprising a bed frame, legs connected to a bottom of the bed frame, and supports connected between the bed frame and the legs, the bed frame comprising a left bed frame and a right bed frame, the legs comprising a left leg, a right leg, and a middle leg disposed between the left leg and the right leg, the left bed frame and the right bed frame being hingedly connected through connecting members, the connecting members each comprising a transverse board for supporting and limiting the left bed frame and the right bed frame and a longitudinal board for connecting the left bed frame and the right bed frame, the longitudinal board having a left hinge hole and a right hinge hole, the left bed frame and the right bed frame being connected with the left hinge hole and the right hinge hole through locking members respectively, characterized by: the middle leg comprising a reinforcement transverse pole and a support leg connected to a bottom of the reinforcement transverse pole, two ends of the reinforcement transverse pole being provided with the connecting members respectively, the longitudinal boards of the connecting members being disposed at inner sides of the left bed frame and the right bed frame, the support leg being disposed between the longitudinal boards of the connecting members.
 2. The foldable bed frame structure as claimed in claim 1, wherein the transverse board is integrally formed with the longitudinal board, the longitudinal boards of the connecting members being welded to the two ends of the reinforcement transverse pole, respectively.
 3. The foldable bed frame structure as claimed in claim 1, wherein the locking members are screws each comprising a bolt portion and a threaded portion, the bolt portion being located at an inner side of the bed frame, one end of the threaded portion being fixedly connected to the bolt portion, another end of the threaded portion being located inside the bed frame.
 4. The foldable bed frame structure as claimed in claim 3, wherein both the left bed frame and the right bed frame are composed of a plurality of pipes, inner ends of the left bed frame and the right bed frame being defined as pipe orifice portions of the pipes, the pipe orifice portions each being provided with a solid block, the threaded portion being screwed to the block. 